The HP4 1AU postcode was located in Dacorum, Hertfordshire postcode town, within East of England, England region.
It is now a terminated postcode, it was a Large User postcode introduced in 1993-08 and terminated on 1997-06.
| Name | Type |
|---|---|
| OA21CD | E00118712 |
| LSOA21CD | E01023368 |
| MSOA21CD | E02004869 |
| MSOA21 | Berkhamsted South |
| Postcode Area | HP4 |
| Ward | Berkhamsted East |
| LTLA22 | Dacorum |
| UTLA22 | Hertfordshire |
| Region | East of England |
| Country | England |
| Co-ordinates | [ -0.5677045517816867, 51.761403309317764 ] |